Chris Carlsson, co-director of the multimedia history project Shaping San Francisco (historicalarchive at foundsf.org), is a writer, publisher, editor, and community organizer. He has written two books (After the Deluge, Nowtopia) edited six books, (Reclaiming San Francisco, The Political Edge, Bad Attitude, Critical Mass: Bicycling's Defiant Celebration and Ten Years That Shook the City: San Francisco, 1968-78, and Shift Happens: Critical Mass at 20). He redesigned and co-authored an expanded Vanished Waters: A History of San Francisco's Mission Bay. He has produced weekly public Talks since January 2006. He also conducts award-winning bicycle history tours. He has given hundreds of public presentations based on Shaping San Francisco, Critical Mass, Nowtopia, Vanished Waters, and his "Reclaiming San Francisco" history anthologies since the late 1990s, and has appeared dozens of times in radio, television and on the internet.